.bi {
    width: 16px;
    height: 16px;
    position: relative;
    margin-top: -2px;
    margin-right: 3px;
}

.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 56px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
}

@media (max-width: 767.98px) {
    .sidebar {
        top: 5rem;
    }
    .add{
        width: 50%;
    }
}

.main{
    padding-top: 56px;
}